CFD Prediction for Spin Rate of Fixed Canards on a Spinning Projectile

摘要

A computational study performed for spin rate of fixed canards on a spinning projectile is presented in this paper. The cancards configurations provide challenges in terms of the determination of the aerodynamic forces and moments and the flow field changes which could have significant effect on the stability, performance, and corrected round accuracy. Advanced time accurate Navier-Stokes computations have been performed to compute the spin rate associated with the spinning motion of the cancards configurations at supersonic speed. The results show that rolldamping moment of cancards varies linearly with the spin rate at supersonic velocity.